How do you unlock the askri on army of two the 40th day

EA website says you must have a file of the first Army of Two and that this will unlock these weapons. However, I have finished the first game on all levels, own all weapons and upgrades, own all armor and have most achievements. Yet I do not have these weapons unlocked for me even after finishing the game on normal. I am now working on contractor and casual difficulties to see if that does anything different.